Cuspidor.



gll Tw l PATENTED JUNE'ZO, 1905. W. B. @n E. P. ALFORD.

CUSPIDOR.

APPLICATION FILEDJUNE z5. 1904.

lea

./h FZQ* J/WENTORS l BY IINITED STATES Patented June 20, 1905.

PATENT ETIcE.

wILLIAIvI BAsIIIN ALEoRD AND EDWIN P. ALEonD, oF sUMTEE,

soUTI-I CAROLINA.

CUSPIDOR.

.SPECIFICATION forming part of Letters Patent No. 7 92,87 2,

dated June 2o, 1905.

Appelation fue@ June 25,1904. serial No. 214,145.

To (LM Ll/71.0712, 'llt han/y concern:

Be it known that we, WVILLIAM BAsKIN AL- FoRD and EDWIN I. ALFoRD, citizens of the United States, residing at Sumter, in the county of Sumter and State of South Carolina, have in vented new and useful Improvements in Cuspidors, of which the following is a specilication.

This invention relates to {lushing cuspidors suitable particularly for the use of dentists; and it relates especially to that class of such cuspidors in which the bowl has a tubular rim from which the water is discharged.

'lhc object of the invention is to produce a device improved with respect to the means for delivering the water. A slot or narrow opening' is formed in the rim of the cuspidor, near the top thereof, through which the water is discharged in a thin sheet into the bowl. Improved means are disclosed for varying the size of the slot or opening, also for supplying water to the spittoon.

The spittoon is particularly designed to be used in connection with a water-motor, and the waste water from the motor is utilized to flush the spittoon. A connection is, however, provided whereby the spittoon may be flushed by the admission of water directly from the water-supply pipe without going to the motor.

In the accompanying drawings, Figure 1 is a vertical sectional view through the cuspidor and the supply and waste pipe connections. Fig. 2 is an elevation which also shows the direct connection between the water-supply pipe and the cuspidor. Fig. 3 is a detail in section of a modified form of spittoon.

Referring specilically to the drawings, 6 indicates the wastepipe from a motor, (not shown,) and 7 a supply-pipe thereto. rI`he waste-pipe acts as a support for the cuspidor, to which it is connected by a supply branch 8 and a waste branch 9. The branch pipe 8 leads from the pipe 6 and has a rising portion 10 connected to the rim 11 of the cuspidor. An air-vent tube 1Q opens into the top of the pipe 1() and has for its purpose to allow the escape of any air which becomes confined in said pipe.

rIhe tube 12 extends vertically to a suicient height to prevent the overliow of any water therefrom. As the water falls in thc waste-pipe 6 from the motor it carries with it a certain amount of hair which it is necessary to remove before the water is discharged into the cuspidor; otherwise the sheet of water delivered thereinto will not be continuous and will contain objectionable breaks or spaces and will not iiow noiselessly. The rising portion 10 permits the escape of any air carried down by the water, which air seeks the top of the pipe and escapes through the tube 12.

The cuspidor comprises outer and inner bowls 13 and 14, respectively, and a tubular rim 11 is formed by substantially selnicircular portions at the top of each bowl. rl`he edges of these semicircular bowls lap at the top, producing a continuous slot or opening therebetween, as indicated at 15, and the water escapes through this slot or opening in a smooth continuous sheet. The two bowls have tubular waste-outlets, (ind ieated, respectively, at 13 and 1451) and these tubes are threaded to screw outside of each other, as shown. Adjustment is thereby permitted to vary the size of the opening 15. It is obvious that if the inner bowl is screwed down the opening 15 will be widened, and vice versa. Minute holes 16 in the tube 14ClL allow the leakage of any water which may remain between the bowls after the operation of the cuspidor is stopped.

The outer nipple 13LL screws into the trapfitting (indicated at 17) which connects to the outlet-pipe 9. The trap-fitting has a leg which receives a screw-cap 19. Gold and the like dropped in the spittoon is caught in the trap and may be recovered by removal of the cap 19.

In the waste-pipe 6, between the junctions therewith of the branch pipes 8 and 9, is a cock 20, by manipulation of which the water may be turned on or off from the cuspidor, as desired. Evidently when the cock is opened the water will How directly out through the waste-pipe and when closed wholly or partly a corresponding amount of water will pass through the pipe 8 and the cuspidor.

It is sometimes desirable to Hush the spittoon withou-t operation of the motor from which the waste-pipe 6 leads, and for this purpose a direct connection is made with the supply-pipe 7 as shown in Fig. 2. rlhis connection includes a fieXible pipe 21, the flow through which is controlled by a cock 22 and the end of which enters the side of the pipe 10, as indicated at 23. The water may thus be turned on or of't1 to give adirect flow from the supply-pipe to the spittoon when desired.v The flexible connection 21 is provided to enable the cuspidor to be raised or lowered, which may be effected by means not necessary to describe here, such means being found in connection with dental chairs of ordinary construction.

In the modification shown in Fig. 3 the bowl is single, as at 25, and the tube 1l is produced at the top thereof with a similar discharge-slot l5. This discharge-slot in both constructions is preferably located at the top of the rim, whereby the water flows over substantially the inner half of the rim and effects the removal of any matter deposited thereon.

A cuspidor constructed as above described will have a silent, smooth, and even fiow of a sheet of water from the opening' in the rim down the inside of the bowl to the outlet. The water is rid of air, so that no breaks or sputtering occur. The adjustment permitted by the double-bowl construction allows a nice control of the water delivered without in any way breaking the continuity of the sheet of water delivered.

What we claim as new, and desire to secure by Letters Patent, is-

l. In a iiushing cuspidor, in combination, inner and outer bowls having a water-space therebetween and tubular rim-sections at the top of each, which rim-sections lap at their upper edges, forming a contracted inwardlydirected slot therebetween, a supply-inlet to said space, and a waste-outlet from the inner bowl.

2. A double bowl for a flushing cuspidor, comprising inner and outer parts with a waterspaee between, the outer part having at the top a rim-section the upper edge of which is directed inwardly, and the inner part having at the top a rim-section the upper edge of which is directed outwardly and located under and adjacent to the edge of the said rim-section of the outer part, producing a narrow inwardly-directed slot at the top of. the rim, and both of said parts having at the bottom outlet-pipes which screw into 4each other.

3. The combination with a main pipe, of a bowl having an inlet at the top and an outlet at the bottom, branch pipes connectingl said main pipe and the inlet and outlet respectively, and a cock in the main pipe between the junction therewith of said branch pipes whereby a current of' water fiowing through the main pipe may be partially or wholly defiected to flow through said bowl.

In testimony whereof we have signed our names to this specification in the presence of the subscribing witnesses.

WVM. BASKN ALFORD. EDWIN P. ALFORD. Vitnesses to Wm. B. Alford:

JOHN L. BURNS, W. B. BURNS. Witnesses to Edwin P. Alford:

G. A. LnMMoN, J. K. UnosswELL. 

